X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.db-test.git;a=blobdiff_plain;f=yarrg%2FCommods.pm;h=e63126ace25bb25fa65006d4e028bc4c0154969b;hp=372fe16f51544081e9378d68563a91a5b38868df;hb=1f6f88af87868d6e059be154ed6b56dd9ea7ac6c;hpb=6302552bfa5844eddb7c26386c9995733f0a5174

diff --git a/yarrg/Commods.pm b/yarrg/Commods.pm
index 372fe16..e63126a 100644
--- a/yarrg/Commods.pm
+++ b/yarrg/Commods.pm
@@ -22,6 +22,7 @@
 
 package Commods;
 use IO::File;
+use IO::Pipe;
 use HTTP::Request::Common ();
 use POSIX;
 use LWP::UserAgent;
@@ -45,13 +46,40 @@ BEGIN {
 		      &pipethrough_run_gzip &http_useragent &version_core
 		      &http_useragent_string_map
 		      &cgipostform &yarrgpostform &cgi_get_caller
-		      &set_ctype_utf8 $masterinfoversion);
+		      &set_ctype_utf8 $masterinfoversion
+		      &source_tarball);
     %EXPORT_TAGS = ( );
 
     @EXPORT_OK   = qw();
 }
 
-our $masterinfoversion= 2; # version we understand
+our $masterinfoversion= 2; # version we understand.
+#
+# To extend the source-info.txt format:
+#
+#    * Commods.pm:parse_info1
+#       add code to parse new version
+#
+#    * source-info.txt
+#       add new information
+#
+# If new data should NOT be in master-info.txt too:
+#
+#    * update-master-info:process_some_info
+#       check that code for converting source-info to master-info
+#       removes the extra info; add code to remove it if necessary
+#
+#    * db-idempotent-populate
+#       if database schema is extended, add code to copy data
+#
+# If new data DOES need to be in master-info.txt too:
+#
+#    * Commods.pm:$masterinfoversion
+#       increment
+#
+#    * update-master-info:process_some_info
+#       add code to convert new version to old, by removing
+#       extra info conditionally depending on version
 
 our %oceans; # eg $oceans{'Midnight'}{'Ruby'}{'Eta Island'}= $sources;
 our %clients; # eg $clients{'ypp-sc-tools'}= [ qw(last-page) ];
@@ -205,6 +233,7 @@ sub fetch_with_rsync ($) {
 
 sub parse_info_serverside () {
     parse_info1('source-info.txt','s',0);
+    parse_info1('tree-info.txt','t',1);
 }
 sub parse_info_serverside_ocean ($) {
     my ($oceanname) = @_;
@@ -409,4 +438,38 @@ sub http_useragent ($) {
     return $ua;
 }
 
+sub source_tarball ($$) {
+    my ($sourcebasedir,$spitoutfn) = @_;
+
+    my $pipe= new IO::Pipe or die $!;
+    my $pid= fork();  defined $pid or die $!;
+    if (!$pid) {
+	$ENV{'YPPSC_YARRG_SRCBASE'}= $sourcebasedir;
+	$pipe->writer();
+	exec '/bin/sh','-c','
+		cd -P "$YPPSC_YARRG_SRCBASE"
+		(
+		 git-ls-files -z;
+		 git-ls-files -z --others --exclude-from=.gitignore;
+		 if test -d .git; then find .git -print0; fi
+		) | (
+		 cpio -Hustar -o --quiet -0 -R 1000:1000 || \
+		 cpio -Hustar -o --quiet -0
+		) | gzip
+	';
+	die $!;
+    }
+    $pipe->reader();
+
+    my ($d, $l);
+    while ($l= read $pipe, $d, 65536) {
+	$spitoutfn->($d);
+    }
+    waitpid $pid,0;
+    defined $l or die "read pipe $!";
+    $pipe->error and die "pipe error $!";
+    close $pipe;
+    # deliberately ignore errors
+}
+
 1;